Electronics & Semiconductors
Perovskites are hybrid compounds that can be made from metal halides and organic constituents. Their attractive structural and electronic properties have placed them at the forefront of materials' research, with enormous ...
Apr 21, 2021
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Electronics & Semiconductors
Modern electronics is approaching the limit of its capabilities, which is determined by the fundamental laws of physics. Therefore, the use of classical materials, for example, silicon, is no longer able to meet the requirements ...
Mar 2, 2021
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Electronics & Semiconductors
Flexible electrodes, electronic components that conduct electricity, are of key importance for the development of numerous wearable technologies, including smartwatches, fitness trackers and health monitoring devices. Ideally, ...
Electronics & Semiconductors
In today's digital age, the use of "Internet-of-things" (devices embedded with softwares and sensors) has become widespread. These devices include wireless equipment, autonomous machinery, wearable sensors, and security systems. ...
Feb 16, 2021
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Other
Last week Daisy Ridley and Jennifer Hudson went to a movie premiere together. They posed for photos and made remarks from a stage while an audience watched quietly.
Jan 23, 2021
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Electronics & Semiconductors
Over the past few years, researchers have been trying to develop new designs for perovskite solar cells that could improve their performance, efficiency and stability over time. One possible way of achieving this is to combine ...
Business
The Walt Disney Co.'s streaming plans shifted into hyper speed Thursday, as the studio unveiled a galaxy's worth of new streaming offerings including plans for 10 "Star Wars" series spinoffs and 10 Marvel series that will ...
Dec 11, 2020
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Electronics & Semiconductors
Researchers at Osaka University demonstrated a new technique for modifying the hydrogen concentration of resistors by applying an electrical voltage. The generated electric field drove the diffusion of hydrogen ions deeper ...
Dec 9, 2020
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Electronics & Semiconductors
Engineers at Duke University have demonstrated a dual-mode heating and cooling device for building climate control that, if widely deployed in the U.S., could cut HVAC energy use by nearly 20 percent.
Dec 2, 2020
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Engineering
Lithium-ion (Li-ion) batteries are widely used in portable electronic devices, electric vehicles, and grid-scale energy storage systems. Safety of Li-ion batteries, however, has been called into question repeatedly over the ...
Nov 18, 2020
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Film encompasses individual motion pictures, the field of film as an art form, and the motion picture industry. Films are produced by recording images from the world with cameras, or by creating images using animation techniques or special effects.
Films are cultural artifacts created by specific cultures, which reflect those cultures, and, in turn, affect them. Film is considered to be an important art form, a source of popular entertainment and a powerful method for educating — or indoctrinating — citizens. The visual elements of cinema gives motion pictures a universal power of communication. Some films have become popular worldwide attractions by using dubbing or subtitles that translate the dialogue.
Traditional films are made up of a series of individual images called frames. When these images are shown rapidly in succession, a viewer has the illusion that motion is occurring. The viewer cannot see the flickering between frames due to an effect known as persistence of vision, whereby the eye retains a visual image for a fraction of a second after the source has been removed. Viewers perceive motion due to a psychological effect called beta movement.
The origin of the name "film" comes from the fact that photographic film (also called film stock) had historically been the primary medium for recording and displaying motion pictures. Many other terms exist for an individual motion picture, including picture, picture show, photo-play, flick. A common name for film in the United States is movie, while the Europeans prefer cinema. Additional terms for the field in general include the big screen, the silver screen, the cinema and the movies.
This text uses material from Wikipedia, licensed under CC BY-SA
